Home / 19,735.78-27,235.36-11,237.47

Finding the Fourth Proportional to 19,735.78, 27,235.36 and 11,237.47

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Solution

The fourth proportional to 19,735.78, 27,235.36 and 11,237.47 is: 15,507.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,735.78 : 27,235.36 = 11,237.47 : x
  2. Step 2: Convert to fraction form
    19,735.78/27,235.36 = 11,237.47/x
  3. Step 3: Cross multiply
    19,735.78x = 27,235.36 × 11,237.47
  4. Step 4: Simplify right side
    19,735.78x = 306,056,540.94
  5. Step 5: Solve for x
    x = 306,056,540.94/19,735.78
  6. Step 6: Final answer
    x = 15,507.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.